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structure definition def or abbrev

DevelopmentReversalCert

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formal statement (Lean)

  60structure DevelopmentReversalCert where
  61  stage_count : Fintype.card EriksonStage = 8
  62  two_cube : Fintype.card EriksonStage = 2 ^ 3
  63  involution : ∀ k : Fin 8, reverse (reverse k) = k
  64  endpoints_swap : reverse ⟨0, by decide⟩ = ⟨7, by decide⟩
  65  midlife_first : (reverse ⟨6, by decide⟩).val < (reverse ⟨0, by decide⟩).val
  66

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